Fish Immunology contains the proceedings of a symposium organized by the Fisheries Society of the British Isles, held in Plymouth, England, 11-13 July 1983. This volume contains 29 chapters and opens with a study on the prevention of disease outbreak or treatment of disease in fish farms with drugs or chemicals. Separate chapters follow on topics such as immune phenomena in Teleostei or Anura; phagocytosis in fish; the granulocytes of three elasmobranch species, namely Scyliorhinus canicula, Raja clavata and R. microcellata; and phagocytic cells in the dogfish (Scyliorhinus canicula l.); and levels of α-precipitin in two groups of wild fish: a group believed to be suffering from Ulcerative Dermal Necrosis (UDN) and a healthy group showing no external evidence of disease. Subsequent chapters deal with sequential antigenic competition in teleosts challenged with the fish-furunculosis bacterium Aeromonas salmonicida; the occurrence of vaccine uptake at the skin surface of rainbow trout; and vaccination and development of immunological memory in carp.